SU996162A1 - Automatic machine for assembling radiator tube pack - Google Patents

Description

The invention relates to machine-assembly production, in particular, to devices for assembling a pipe package of a radiator. A device for assembling rectilinear tube bundles of heat exchangers is known, comprising two faceplates arranged on a bed provided with directions to move in a horizontal plane, as well as a container that can move in a vertical plane, and the faceplates have pins made of different lengths gradually decreasing to the base of the faceplate, and the mechanism of dp putting on and removing from the pins of partitions and grids C13. However, the known device does not provide the required performance, since the entire process of manufacturing a tube package of various types of radiator is not automated. An automatic machine for assembling a pipe package of a radiator is also installed, which contains shops for the tubes and radiator cooling plates with mechanisms for their single output, each of them is designed as a feeding element connected with a rod of an executive cylinder, devices for assembling a package in the form of a lifting table, connected with a rod of an individual power cylinder, a device for gripping and transferring a package a radiator, made in the form of a drive sled mounted on the hygrozontal guide, with a carriage with a gripping element and relative compression of the carriage with a gripping element and a squeezing package (radiator) with a supporting element; leveling gauge, a device made in the form of combs with a drive from a hydraulic cylinder, and a device for pressing tube plates and expanding tubes in the form of symmetrically arranged working heads with flared tools at the ends of the sliders and with lugs dp of installing tube plates 12J, However, when installing DL shop of cooling plates with the mechanism of their single delivery on the same axis with the package forming area; it is possible to assemble only a single radiator (a radiator with one cooling plate in each izontal cash row). The package calibration mechanism, performed in a kind of two rotary gauge plates, does not allow for the calibration of the ends of the bag tubes, since before pressing the dbsock gauge plates are retracted to the sides and the tubes regain their original position. The quality of the flaring of the ends of the tubes in the package is also not ensured due to the traditional scheme of fixing all of the expansion poins in one plate, since the force effect of the flared tools on the tubes will be different, there will be an underdevelopment of the short ends of the tubes, while the ends are more protruding thin-walled tubes can be broken (for several hundred tubes contained in the radiator package, there are deviations in length within the tolerance and, moreover, uneven outreach of the tubes from the package This inevitably occurs when the package is formed due to gaps in the guide grooves). Moreover, the design of the device transferring the package to the press-on and flaring positions does not ensure positioning accuracy of the package relative to the holes of the pressed boards and flared elements, since the carriage with the radiator package is lowered under due to the presence of gaps in the vertical carriage guides, which will also make the pressing operation of the doso impossible and subsequent rolling. The aim of the invention is to expand the technological capabilities of the improved build quality and performance. The goal: the goal is achieved by the fact that in a machine for assembling a pipe package of a radiator, containing technological stations located on the frame in technological sequence and connected by a hydraulic system, there are shops for tubes and radiator cooling plates with mechanisms for their single output, each one a feed member associated with the rods of the execution cylinder; A device for forming a radiator package, made in the form of a lifting table connected to a radiator rod, in the form of a lifting table connected to an individual power rod. hydraulic cylinder; device for gripping and transferring a radiator package, made in the form of a carriage mounted on a horizontal guide rail with spaced relative reciprocating movement of the carriage with gripping elements and a radiator package compression mechanism, leveling-calibrating device made in the form of combs with a drive from the hydraulic cylinder and the device for pressing the tube plates and expanding the tubes, made in the form of two bochih heads with flaring tool, the device for forming the package is provided with a lifting table mounted on plitoysputnikom apertured for zahvat-, n1H elements of the device for gripping and transport of the radiator package and hydraulically discrete movement of the table, made in the form interconnected by ggedromagistralyu. an adjustable metering pump installed in the actuator cylinder of the piece tube mechanism with the ability to interact with the piston of the said cylinder and connected to the rod cavity of the power table lifting hydraulic cylinder, as well as interconnected hydraulic control valve with electromagnetic control and flow controller connected to the rodless cavity power lifting cylinder table, with the leveling-calibrating device combined with a device for pressing pipe tubes and ram handsets of tubes. Each working head of the device for press-fitting tube boards and raevaltsovki tubes are made in the cylinder block D-sided with communicating cavities, detachable holders, fixed on the cylinder-rod rods, placed in the holders of elastic gaskets under the Topupi flare tools installed in groups in the holders, the ends of the body of the working heads facing one to the other, made protrusions for the installation of tube plates. The compression mechanism of the device for gripping and transferring the radiator package is made in the vice spring plate. the device connected with the carriage by rolling pins and spreading sleeves, and the gripping elements of the device are made in the form of grips attached to the carriage with supporting shoulders under the satellite plate. To ensure the assembly of a radiator with two cooling plates in each horizontal row of a tube package, stores of cooling plates with single piece mechanisms are located on both sides of the device to form a radiator packet. In addition, the machine is equipped with a rotary discharge device located behind the device.

for press-up tube sheets and tube expansion.

FIG. 1 shows the automatic, general, type; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a functional block diagram of the packet forming apparatus of FIG. 4- part of the radiator tube package; in fig. 5 is a section BB in FIG. one; in fig. 6-- section BB in FIG. one; in fig. 7 - working head with flare tools; in fig. 8 - working head with flare tools at the time of flaring of the pipe j in FIG. 9 is a device for capturing and transferring a radiator packet at the time of packet capture; in fig. 10 - the same, when transporting the package; Fig.11 diagram of the leveling calibrating device; in FIG. 12 shows a gripping element of a device for gripping and transporting a package during transportation; in fig. 13 - the same, the gripping element in the unloading position.

The automatic machine for assembling a tube package of a radiator contains a six-store magazine 1 for tubes with a mechanism for their piece-by-piece penetration into the zone of the pack lidding consisting of a feed element such as a slide gate 2 fixed on the stem of the actuating cylinder 3, two magazines 4 for cooling plaster- Tin with the mechanisms for their single delivery, consisting respectively of two dampers & mounted on the rods of the two actuating cylinders b, the device 7 for forming a package, leveling and calibrating device, the device 8 for pressing the tube plates and expanding the tubes, the device 9 for gripping and transferring the package of radiator from the position of forming the package to the position, pressing and expanding, unloading the device 10 dd transfer package after napressovki tube plates and flaring tubes for subsequent technological operations.

The device 7 for forming the package contains a discretely descending table 11 fixed on the rod of an individual power hydraulic 12 The discrete movement of the lifting table 11 fixed on the rod of the hydraulic cylinder 12 is made by means of a hydraulic actuator peryjiHR-dosing pump 13 that is integrated into the executive cylinder. The hydraulic cylinder 12 is hydraulically connected to the metering pump 13 and the tank 14. The volume of the working cavity of the metering pump 1-3, containing the piston 15 and the spring 16, varies with by an emphasis: 17, the position of which is determined by the adjusting screw 18. Hydraulic adapter 1 contains a filter 19, check valves 20 and 21, hydraulic valves with electromagnetic control 22 and 23 and a regulator; a stream 24. The package is formed on the satellite plate 25, which is installed on the lifting table 11. The presence of the plate-satellite 25 on the table 11 is controlled by a microswitch 2, the pushing of tubes and plates from the gates 2 and 5 onto the satellite-plate 25 is carried out by pawns 27. While lowering the table 11 as package formation The tubes are oriented in six vertical grooves, which have a distance of 28 cm. (f-between the cooling plates in one row is provided by two plates 29 and guide posts. 30. The extreme positions of the lifting table 11 are fixed by microswitches 31 and 32, the positions of gate 2 by microswitches 33 and 34, and those of gate 5 5 by microswitch 35. Microswitches 36 are installed on stores 4 with cooling plates, indicating the presence of plates in stores. The device 8 for press-fitting the tubes, boards and flares of the tubes contains two working heads 37 symmetrically mounted on the frame and moving along the guides from the shafts 38 with the help of the lever 39. Each of the working heads 37 is a block of cylinders with communicating hydraulic cavities 40 and 41 Spade specimens 42 are installed in groups in detachable holders 43 and rested with their ends on elastic gaskets 44. Spreader tools shchuyut two-step. One step of the flare tool has a perimeter of the cross section slightly greater than the perimeter) and a cross section of the flared tube, and the second step is performed with the perimeter of the cross section a little smaller than the perimeter of the cross section of the hole in the tube plate. The holders 43 are fastened to the piston rods 45. The final positions of the OPERATING heads 37 are fixed by microswitches 46 and 47. An element, for example, protrusion 48 for installing the tube plate 49 is made at the end of the body of the working heads 37.

An aligning-calibrating device consisting of dies 50 driven by cylinders 51, is installed on the position of press-on and flaring.

The device 9 for gripping and transporting the radiator package comprises a slide 52, moving in the horizontal direction along the guides 53 by means of a screw gear 54, the rotational drive of which is used by an adjustable hydraulic motor 55. The extreme horizontally adjustable positions of the slide 52; microswitches 1 and 56 are fixed. The vertical movement of the carriage 57 relative to the grids 52, on which the carriage 57 is mounted, is carried out by the cylinder 58. The extreme vertical positions of the carriage 57 are fixed by microswitches 59 and 60 .. On the carriage 57 there is a compression mechanism containing a spring-loaded pressure plate 61, associated with the bottom surface of the carriage 57, cylindrical rolling pins 62, springs 63 and spacers 64. The carriage 57 is also provided with rods 65, each of which has a gripping member 66 in the form of collets, p The 1ZIH cutting tool of the split sleeves with a conical feedthrough and support shoulders, on which the flatbed-satellite 25 is supported with a bag formed on it during its transfer. In the platter-satellite 25, technological holes for insertion of the gripping elements 66 are made. Compression of the gripping elements 66 at the unloading position in order to release the bag is carried out with the aid of the sleeve 67. A more accurate positioning of the bag at the unloading position before pressing the tube plates and breaking up the tubes is ensured by the presence of pin pins 68 entering the holes of the satellite plate 25 on which the radiator tube pack is located. The radiator tube assembly works as follows Store 1 is filled with tubes, and stores 4 with cooling plates-. mi The presence of plates in stores 4 in view of their smaller capacity controls the microswitch 36 and ensures the start-up of the motor battery only if they are present in the stores. A plate-satellite 25 is placed on the table 11, on which the radiator package is formed. The plate-satellite 25 with its weight presses the microswitch 26, thus preparing the electrical circuitry of the device 7 to form the radiator package for operation in automatic mode. The automatic cycle of operation of the device 7 for forming a radiator package begins with the movement of the rod of the power cylinder 12 together with the table 11 and the satellite plate 25 to the extreme upper position. This is achieved by switching on the electro magnets of the hydraulic distributors 23 and 22. At the same time, the oil from the main hydroline through pipelines through the hydraulic distributor 2.3 under pressure enters the rod end of the power hydraulic cylinder 12 and the oil displaced by the piston from the rod end of the hydraulic cylinder 12 and the hydraulic distributor 22 flows into the tank 14. By discharging the uppermost position, table 11 gives the commands for switching the control valves 22 and 23 and for switching on the actuating cylinders 3 and 6. The control valve 22 will shut off em overflow line leading to the tank 14, and the valve 23 connects rodless cavity of the actuating cylinder with the hydroline of the main drain. At the end of the stroke, the power cylinder 12 presses the microswitch 32, which gives the command to move the rod of the actuating cylinder 3 connected to the gate 2 of the tube dispensing mechanism and the rods of the actuating cylinder 6 connected to the slide 5, When running to the right, the gate 2 pulls out of the magazine 1 in the bag formation zone is simultaneously six tubes lying in the horizontal grooves of the gate 2, and the gates 5 are taken out of the magazines 4, installed parallel to the device for forming the bag, on either side of it, simultaneously along one cooling plate. At the end of the stroke of the actuating cylinder 3, the microswitch 33 is pressed, giving a command to reverse the movement of the gates. During the return stroke of the gates 2 and 5, the tubes and plates are dropped by the dogs 27 to the satellite plate 25 lying on the table 11. At. During the stroke of the cylinder 3 to the right, the spring 16 of the metering pump 13 pushes the piston 15 to the right to suck the oil out of the tank 14 through the filter 19 and the check valve 21 into the working cavity of the metering pump 13. With a return stroke, the cylinder 3 moves the piston 5 . In the left position, the oil is displaced from the working cavity of the metering pump 13 through the check valve 20 into the rod cavity of the power hydraulic cylinder 12, ensuring the lowering of the table 11 after laying a layer of parts consisting of a row of tubes and plates on it and preparing those the most suitable conditions for laying the next layer of parts. The required value of the discrete movement of the table 11 is determined by the position of the stop 17, the movement of which uses the screw 18 to change the volume of the working cavity of the pump distributor 13. The required pressure of the sub-pressure in the rodless cavity of the power hydraulic cylinder 12 ensures smooth movement of the table 11 with the package and preventing them from spontaneous lowering, is set Torsm flow 24. The actuator cylinder 3 and 6 moves. As well as the intermittent movement of the rod of the power cylinder 12 downwards, is repeated until the pipe assembly is complete. of the package. The eG- distance between the cooling plates when FO1 4 bag packs is provided by the presence of plates 29, to which the cooling plates are fed to the slides 5. Keeping the cooling plates from shifting to the outside is guided by the uprights 30. The tubes are kept in the required position by six vertical nasaNM in each of the guides 28.

When the table 11 with the formed package reaches the lowest position, the flip-flop switch 31 is commanded to turn off the device 7 for forming the bag and to turn on the hydraulic motor 55. Using the screw gear 54, the slide 52 of the device 9 for gripping and transferring the bag is moved along horizontal guides 53 in left end position to microswitch 56, which gives a command to stop the motor 55 and move. The slide of the carriage 57 downwards with the help of the cylinder 58. When the carriage 57 is lowered, into the bag formation zone, the bevels are not. The shafts 65 additionally align the outer sides of the cooling plates to the drawing size, and the gripping elements 66 are made in the form of collets (split sleeves). Supporting the flanges with a collar and a conical ea passive part, which are included in the technological openings of the plate-satellite 25 with the package formed on it. As the carriage 57 moves down; The pressing plate 61, in contact with the bag, compresses the springs 63. In this case, the force of the cylinder 58 necessary for compressing the bag to the size of the height is transmitted by the pressure plate through the spacer sleeves 64. At the end of the stroke of the cylinder 58 (after the bag is compressed to the drawing size), -switch 60, which gives a command to lift the carriage 57; When the latter is moved upwards, the gripping elements 66, the collet, abut their supporting shoulders. the satellite plate 25 with the tubular bag and lifts it, and during transport, the bag is held in a fixed position by the forces of friction, creating a friction. springs 63. In the final upper position of the carriage 57 presses the microswitch 59, which commands the reverse rotation of the motor 55 and the carriage 57 with the bag moves to the right position to another microswitch 56, which gives the command to stop the motor 55 and lower the bag to the working position. Devices 8 for press-fitting tube plates and flared tubes: wherein the gripping elements 66 are included in the OTsepCTHii of the receiving sleeves 67 and remain in a compressed position. In the lower position of the carriage 67, the bag is further compressed to the drawing dimensions by the presser plate 61 through the spacer sleeve 64, and the microswitch 60 gives commands for supplying the dies 50 using cylinders 51, calibrating the tube ends according to the size of the step between them and moving them by means of cylinders 38 and the levers 39 of the working heads 3.7 pre-installed on the protrusions 48, which are provided on the body of the heads, by tube plates 49 for pressing the latter onto the ends of the tubes of the bag. At the same time, the flared tools are inserted into the openings of the tubes of the stack with a step with a small perimeter of a cross section, without deforming them, and the tube plates are put on (pressed) onto the ends of the tubes. The process of pressing the tube plates onto the ends of the tubes is greatly facilitated by the fact that the flare tools orient the ends of the tubes with respect to the holes in the tube plate.

At the end of the stroke of the heads 37, the microswitch 47 is pressed, giving the command to deliver oil under pressure into the cavity 40 of the working heads 37. Under the action of this pressure, the pistons 45 with flare tools 42 installed holding the 43 fixed to the piston rods 45, move to the contact of the stage with a large perimeter cross sections of flare tools with tubes of a radiator tube package. With a further increase in pressure in the cavity 40, which ensures the expansion of the tubes, the expansion tools 42 realize the expansion of the pipes. The elastic gaskets 44 of the holders 43 enable the expansion tools 42. self-adjusting in the process of flaring, which contributes to additional compensation for the diversity of the tubes in the package.

After flaring tubes oil

served in the cavity 41 of the working heads 37, while the piston rods 45 are removed from the tubes of the tube package by the expanding tools 42. Then simultaneously switching the hydraulic cylinders 51 are retracted to the initial position of the comb 5, and switching the hydraulic cylinders 38 to the working heads 37, KOTOpfcte to k |} micro move

switch 46, driving com & go for lifting carriage 57, gripping ele- The cops 66, while being reduced, go from the opening of the receiving sleeves 67 to the openings of the slab-satellite 2, leaving the assembled package at the unloading position of the device 8 for pressing the tube plates and expanding the tubes, in the upper position the carriage 57 presses the microswitch 59, giving the command on shutdown

devices for capturing and transferring the package; and devices for pressing the tube plates and expanding the tubes. Assembled pipe package with a discharge position of the device 8 using

Claims (5)

the rotary discharge device 10 is transferred to subsequent technological operations. During the calibration operations, the press-on of the tube plates and the flaring of the ends of the tubes, the device 7 begins to form a new packet of the tube radiator and the operating cycle of the machine repeats in the same sequence. Compared with the known, it allows the assembly of both a single-sided radiator 1.paradator with one cooling plate in each horizontal row and a two-row radiator (in each horizontal row there are two cooling plates), due to the fact that The discharge plates are installed parallel to the device to form a radiator package on either side of it. The expansion of technological capabilities is also achieved through the use of a device in the automaton for forming a package with a closed hydraulic drive with an adjustable metering pump, which makes it possible to form packages of parts of various thicknesses. : The use of a discretely lowering device from a table for forging / shaving, which allows forming a package on top, eliminates the defoE of the ends of the tubes and improves the quality of assembly. Significantly improves the quality of the installation of flare tools on elastic gaskets, which allows them to self-align in the axial direction and maintain a constant force when flared tubes regardless of the length of the latter. The installation of the leveling and calibrating device directly at the position of pressing and flaring and performing it in the form of dies allows to combine the operations of calibration and flaring and, thus, improves the quality of calibration and flaring. The design of the device for capturing and transferring a package allows to carry out a transportation operation with sufficient accuracy in an automatic mode, ensures the accuracy of the positioning of the package. When the bag is captured and unloaded, there is no damage to its outer surface. The supply of the proposed automaton with a pivoting type unloading device allows to mechanize the transmission of the radio access package for subsequent technological operations. Claim 1. The machine for assembling a pipe package of a radiator, containing process shops located on a bed in technological sequence and interconnected by a hydraulic control system, tubes and radiator cooling plates with mechanisms for their single output, each of which is made in the form of a feeding element, tied to the actuator cylinder rods, a device for forming a radiator package, made in the form of a lifting table connected to the rod of an individual power cylinder , device for gripping and transferring a radiator package, made in the form of a carriage mounted on a horizontal guide rail with a carriage with a gripping elements and compression mechanism of the radiator package placed with relative returnable movement, made in the form of dies driven by a hydraulic cylinder , and a device for press-on tube plates and flare tubes, made in the form of installed with the possibility of reciprocating and two working heads with flare tools, characterized in that, in order to expand technological capabilities, improve assembly quality and productivity, the bag forming device is provided with a plate-companion mounted on the lifting table with holes for the gripping elements of the device for gripping and transferring the package radiator, as well as the hydraulic drive of the discrete movement of the table, made in the form of interconnected hydraulic main of an adjustable metering pump installed in the Yelnia the piece cylinder mechanism vadachi tubes to cooperate with the piston of said cylinder and connected with the stem cavity silovo-. table lifting hydraulic cylinders, as well as interconnected hydraulic distributors With electromagnet control and flow controller connected to the rodless cavity of the table lifting power cylinder, with the leveling and calibrating device combined with a device for pressing-up tube plates and expanding tubes 2. An automaton according to claim 1, in which the working head of the device for press-fitting of the chop boards and tube expansion is made in the form of a cylinder block with communicating cavities, detachable holders fixed on the cylinder rods, and placed in the holders of the elastic cylinder. for the ends of the punching tools, set in groups in holders, with This at the ends of the body of the working heads, facing one another, is made protrusions for the installation of pipe boards. . 3. An automatic machine according to claim 1, characterized in that the compression mechanism of the device for; The gripping and transferring package of the radiator is made in the form of a spring-loaded plate associated with. the device of the device with rolling pins and spreading sleeves, and the gripping elements of the device mentioned are made in the form of grips attached to the carriage with supporting shoulders under the satellite plate, 4. Automat on ft. 1, which is based on the fact that, in order to ensure the assembly of a radiator with two cooling plates in each horizontal row of a tube package, the stores of cooling plates with mechanisms for their piece installation are located on both sides of the device for forming a package of radiator. 5. The machine according to claim 1 / o, tl and h ayusch and with the fact that it is equipped with a rotary-type discharge device located behind. a device for directing tube plates and flare tubes. , th Sources of information taken into account in the examination 1. USSR author's certificate No. 329935, cl. B 23 P 15/26, 1970. s 2. USSR author's certificate number 306688, cl. B 23 P 15/26, 1967 (prototype). l SHCHOt5V S7 ig. fff jffch (h 7 h- s l / .WITH. Js 17 N four n / s . Fi.Z 6-6 gz //////////////: ) ig.5 & -b FIG. b rig 7 - /////////////// L ////////////, f1.9 (.TO 77777/777777777 Fi.L.